Layout Highlighter is a free Chrome extension designed to assist web developers and designers in visualizing and debugging HTML markup on web pages. This tool highlights nested elements, making it easier to understand the structure of a website. With its straightforward functionality, users can quickly identify the hierarchy of HTML tags, which is essential for effective web development and design practices.

The extension operates seamlessly within the Chrome browser, providing a simple yet effective way to enhance the debugging process. By illuminating nested tags, Layout Highlighter allows users to focus on specific areas of the webpage, facilitating a clearer understanding of the layout and enabling more efficient adjustments. This feature is particularly useful for those working on complex HTML structures.